package edu.pku.group6.dao;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import edu.pku.group6.entities.*;

/**
 * Data access object (DAO) for domain model class TGoods.
 * 
 * @see edu.pku.group6.dao.TGoods
 * @author MyEclipse Persistence Tools
 */

public class GoodsDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(GoodsDAO.class);

	// property constants
	public static final String NAME = "name";

	public static final String BRAND_ID = "brandId";

	public static final String ENTERPRISE_ID = "enterpriseId";

	public static final String TYPE = "type";

	public static final String PRICE = "price";

	public static final String PACK_TYPE = "packType";

	public static final String CAPACITY = "capacity";

	public static final String SCORE = "score";

	public static final String ACCESS_TIMES = "accessTimes";

	public static final String PICTURE = "picture";

	public static final String SPECIFICATION = "specification";

	public static final String RECOMMANDED = "recommanded";

	public void save(Goods transientInstance) {
		log.debug("saving Goods instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Goods persistentInstance) {
		log.debug("deleting Goods instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Goods findById(java.lang.Integer id) {
		log.debug("getting Goods instance with id: " + id);
		try {
			Goods instance = (Goods) getSession().get(
					"edu.pku.group6.entities.Goods", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Goods instance) {
		log.debug("finding Goods instance by example");
		try {
			List results = getSession().createCriteria(
					"edu.pku.group6.entities.Goods").add(Example.create(instance))
					.list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Goods instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Goods as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findByBrandId(Object brandId) {
		return findByProperty(BRAND_ID, brandId);
	}

	public List findByEnterpriseId(Object enterpriseId) {
		return findByProperty(ENTERPRISE_ID, enterpriseId);
	}

	public List findByType(Object type) {
		return findByProperty(TYPE, type);
	}

	public List findByPrice(Object price) {
		return findByProperty(PRICE, price);
	}

	public List findByPackType(Object packType) {
		return findByProperty(PACK_TYPE, packType);
	}

	public List findByCapacity(Object capacity) {
		return findByProperty(CAPACITY, capacity);
	}

	public List findByScore(Object score) {
		return findByProperty(SCORE, score);
	}

	public List findByAccessTimes(Object accessTimes) {
		return findByProperty(ACCESS_TIMES, accessTimes);
	}

	public List findByPicture(Object picture) {
		return findByProperty(PICTURE, picture);
	}

	public List findBySpecification(Object specification) {
		return findByProperty(SPECIFICATION, specification);
	}

	public List findByRecommanded(Object recommanded) {
		return findByProperty(RECOMMANDED, recommanded);
	}

	public List findAll() {
		log.debug("finding all Goods instances");
		try {
			String queryString = "from Goods";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Goods merge(Goods detachedInstance) {
		log.debug("merging Goods instance");
		try {
			Goods result = (Goods) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Goods instance) {
		log.debug("attaching dirty Goods instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Goods instance) {
		log.debug("attaching clean Goods instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}